vraylightmtl

[percydaman]

How do you crank up the multiplier on the vraylightmtl? Also is there a vrayhdri loader. How do people crank up the fstop value of hdri's?

[Intuition]

This one stumped me for a sec too. You can overdrive the number in the color picker past 1.0.

[percydaman]

ahh okay thanks.

[Morbid Angel]

i suppose you can connect a multiply/devide node into the color and increase the amount there. Though vray material should contain its own multiplier.

[percydaman]

intuitions method worked great. any idea about the hdri issue?

[Morbid Angel]

well, for hdr, you the way maya users do it, is control the brighteness with color gain, where you just lower or raise the value.

[cpnichols]

intuitions method worked great. any idea about the hdri issue?

You load an HDR the same way you do a bitmap. You raise it the same way, through the color picker. As for F-stops, keep in mind that it is exponential.

+1 stop = x2
+2 stops = x4
+3 stops = x8
+4 stops = x16
....
-1 stop = 0.5
-2 stops = 0.25
-3 stops = 0.125
...

[percydaman]

interesting. Im not at home at the moment, but I could have sworn, when I loaded the hdri map into the color slot, the color picker was no longer accesible. ill try again when i get home tonight.

[Morbid Angel]

well its the color gain of the actual hdri filenode.